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April 16, 2014

Homework Help: chemistry(please check my work)

Posted by eng on Saturday, April 3, 2010 at 1:04am.

If 0.836 g of solid Al reacts stoichiometrically according to the balanced equation in a reaction solution with a total volume of 1160 mL, what mass (g) of gaseous H2 is produced?

6 HClO4(aq) + 2 Al(s) → 3 H2(g) + 2 Al(ClO4)3(aq)

0.836g/molecular weight Al=mole of Al
mole of Al x3/2=mole of H2
mole of H2 x molecular weight H2=gram H2

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